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<div class="title">SDL_shape.h</div> </div>
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<a href="SDL__shape_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> Simple DirectMedia Layer</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org></span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"></span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> This software is provided 'as-is', without any express or implied</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> warranty. In no event will the authors be held liable for any damages</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> arising from the use of this software.</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"></span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> Permission is granted to anyone to use this software for any purpose,</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> including commercial applications, and to alter it and redistribute it</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> freely, subject to the following restrictions:</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> 1. The origin of this software must not be misrepresented; you must not</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> claim that you wrote the original software. If you use this software</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> in a product, an acknowledgment in the product documentation would be</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> appreciated but is not required.</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> 2. Altered source versions must be plainly marked as such, and must not be</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> misrepresented as being the original software.</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> 3. This notice may not be removed or altered from any source distribution.</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">*/</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#ifndef SDL_shape_h_</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#define SDL_shape_h_</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="SDL__stdinc_8h.html">SDL_stdinc.h</a>"</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="SDL__pixels_8h.html">SDL_pixels.h</a>"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="SDL__rect_8h.html">SDL_rect.h</a>"</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "<a class="code" href="SDL__surface_8h.html">SDL_surface.h</a>"</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "<a class="code" href="SDL__video_8h.html">SDL_video.h</a>"</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "<a class="code" href="begin__code_8h.html">begin_code.h</a>"</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">/* Set up for C function definitions, even when using C++ */</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#define SDL_NONSHAPEABLE_WINDOW -1</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#define SDL_INVALID_SHAPE_ARGUMENT -2</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#define SDL_WINDOW_LACKS_SHAPE -3</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">extern</span> DECLSPEC <a class="code" href="SDL__video_8h.html#a55a196c7d3b8497538632c79ae1e6392">SDL_Window</a> * SDLCALL <a class="code" href="SDL__shape_8h.html#a5a7bed102a3db4d91e6a8e21be0f9950">SDL_CreateShapedWindow</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *title,<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> x,<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> y,<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> w,<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> h,Uint32 flags);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">extern</span> DECLSPEC SDL_bool SDLCALL <a class="code" href="SDL__shape_8h.html#a28630f0f6b298bac4d0efe850d7d327e">SDL_IsShapedWindow</a>(<span class="keyword">const</span> <a class="code" href="SDL__video_8h.html#a55a196c7d3b8497538632c79ae1e6392">SDL_Window</a> *window);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div><div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20"> 80</a></span> <span class="keyword">typedef</span> <span class="keyword">enum</span> {</div><div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20aca1bc38c9b5179cbed0e9e176cd84d9e"> 82</a></span>  <a class="code" href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20aca1bc38c9b5179cbed0e9e176cd84d9e">ShapeModeDefault</a>,</div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20a0ba1cff6129858a1136728ffdc787926"> 84</a></span>  <a class="code" href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20a0ba1cff6129858a1136728ffdc787926">ShapeModeBinarizeAlpha</a>,</div><div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20ae478c81ede522586674806541e145993"> 86</a></span>  <a class="code" href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20ae478c81ede522586674806541e145993">ShapeModeReverseBinarizeAlpha</a>,</div><div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20a1d3ca52e90d5b3086e22120c2899f214"> 88</a></span>  <a class="code" href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20a1d3ca52e90d5b3086e22120c2899f214">ShapeModeColorKey</a></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> } <a class="code" href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20">WindowShapeMode</a>;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="preprocessor">#define SDL_SHAPEMODEALPHA(mode) (mode == ShapeModeDefault || mode == ShapeModeBinarizeAlpha || mode == ShapeModeReverseBinarizeAlpha)</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div><div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="unionSDL__WindowShapeParams.html"> 94</a></span> <span class="keyword">typedef</span> <span class="keyword">union </span>{</div><div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="unionSDL__WindowShapeParams.html#a534c40b09588a8075c0a70227753dc56"> 96</a></span>  Uint8 <a class="code" href="unionSDL__WindowShapeParams.html#a534c40b09588a8075c0a70227753dc56">binarizationCutoff</a>;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <a class="code" href="structSDL__Color.html">SDL_Color</a> colorKey;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> } <a class="code" href="unionSDL__WindowShapeParams.html">SDL_WindowShapeParams</a>;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="structSDL__WindowShapeMode.html"> 101</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structSDL__WindowShapeMode.html">SDL_WindowShapeMode</a> {</div><div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="structSDL__WindowShapeMode.html#a40ebd8b9a76d982cbd87563386cc05de"> 103</a></span>  <a class="code" href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20">WindowShapeMode</a> <a class="code" href="structSDL__WindowShapeMode.html#a40ebd8b9a76d982cbd87563386cc05de">mode</a>;</div><div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="structSDL__WindowShapeMode.html#a2f79bb294034156207fa6d88d3a8c819"> 105</a></span>  <a class="code" href="unionSDL__WindowShapeParams.html">SDL_WindowShapeParams</a> <a class="code" href="structSDL__WindowShapeMode.html#a2f79bb294034156207fa6d88d3a8c819">parameters</a>;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> } <a class="code" href="SDL__shape_8h.html#a6c00a109057f1e6055dd807600171300">SDL_WindowShapeMode</a>;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="keyword">extern</span> DECLSPEC <span class="keywordtype">int</span> SDLCALL <a class="code" href="SDL__shape_8h.html#a90d52818802235df9689922be5a4cf5a">SDL_SetWindowShape</a>(<a class="code" href="SDL__video_8h.html#a55a196c7d3b8497538632c79ae1e6392">SDL_Window</a> *window,<a class="code" href="structSDL__Surface.html">SDL_Surface</a> *shape,<a class="code" href="structSDL__WindowShapeMode.html">SDL_WindowShapeMode</a> *shape_mode);</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="keyword">extern</span> DECLSPEC <span class="keywordtype">int</span> SDLCALL <a class="code" href="SDL__shape_8h.html#a64dba6f6440cf6984d8da868fd758711">SDL_GetShapedWindowMode</a>(<a class="code" href="SDL__video_8h.html#a55a196c7d3b8497538632c79ae1e6392">SDL_Window</a> *window,<a class="code" href="structSDL__WindowShapeMode.html">SDL_WindowShapeMode</a> *shape_mode);</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment">/* Ends C function definitions when using C++ */</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> }</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="preprocessor">#include "<a class="code" href="close__code_8h.html">close_code.h</a>"</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="preprocessor">#endif </span><span class="comment">/* SDL_shape_h_ */</span><span class="preprocessor"></span></div><div class="ttc" id="SDL__video_8h_html_a55a196c7d3b8497538632c79ae1e6392"><div class="ttname"><a href="SDL__video_8h.html#a55a196c7d3b8497538632c79ae1e6392">SDL_Window</a></div><div class="ttdeci">struct SDL_Window SDL_Window</div><div class="ttdoc">The type used to identify a window.</div><div class="ttdef"><b>Definition:</b> SDL_video.h:90</div></div>
<div class="ttc" id="SDL__shape_8h_html_a5a7bed102a3db4d91e6a8e21be0f9950"><div class="ttname"><a href="SDL__shape_8h.html#a5a7bed102a3db4d91e6a8e21be0f9950">SDL_CreateShapedWindow</a></div><div class="ttdeci">DECLSPEC SDL_Window *SDLCALL SDL_CreateShapedWindow(const char *title, unsigned int x, unsigned int y, unsigned int w, unsigned int h, Uint32 flags)</div><div class="ttdoc">Create a window that can be shaped with the specified position, dimensions, and flags.</div></div>
<div class="ttc" id="structSDL__WindowShapeMode_html_a2f79bb294034156207fa6d88d3a8c819"><div class="ttname"><a href="structSDL__WindowShapeMode.html#a2f79bb294034156207fa6d88d3a8c819">SDL_WindowShapeMode::parameters</a></div><div class="ttdeci">SDL_WindowShapeParams parameters</div><div class="ttdoc">Window-shape parameters.</div><div class="ttdef"><b>Definition:</b> SDL_shape.h:105</div></div>
<div class="ttc" id="SDL__video_8h_html"><div class="ttname"><a href="SDL__video_8h.html">SDL_video.h</a></div></div>
<div class="ttc" id="SDL__rect_8h_html"><div class="ttname"><a href="SDL__rect_8h.html">SDL_rect.h</a></div></div>
<div class="ttc" id="SDL__shape_8h_html_aa30948f2699e316a43b740eccebe5c20ae478c81ede522586674806541e145993"><div class="ttname"><a href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20ae478c81ede522586674806541e145993">ShapeModeReverseBinarizeAlpha</a></div><div class="ttdoc">A binarized alpha cutoff with a given integer value, but with the opposite comparison.</div><div class="ttdef"><b>Definition:</b> SDL_shape.h:86</div></div>
<div class="ttc" id="begin__code_8h_html"><div class="ttname"><a href="begin__code_8h.html">begin_code.h</a></div></div>
<div class="ttc" id="SDL__stdinc_8h_html"><div class="ttname"><a href="SDL__stdinc_8h.html">SDL_stdinc.h</a></div></div>
<div class="ttc" id="structSDL__Surface_html"><div class="ttname"><a href="structSDL__Surface.html">SDL_Surface</a></div><div class="ttdoc">A collection of pixels used in software blitting.</div><div class="ttdef"><b>Definition:</b> SDL_surface.h:70</div></div>
<div class="ttc" id="structSDL__Color_html"><div class="ttname"><a href="structSDL__Color.html">SDL_Color</a></div><div class="ttdef"><b>Definition:</b> SDL_pixels.h:295</div></div>
<div class="ttc" id="SDL__shape_8h_html_a28630f0f6b298bac4d0efe850d7d327e"><div class="ttname"><a href="SDL__shape_8h.html#a28630f0f6b298bac4d0efe850d7d327e">SDL_IsShapedWindow</a></div><div class="ttdeci">DECLSPEC SDL_bool SDLCALL SDL_IsShapedWindow(const SDL_Window *window)</div><div class="ttdoc">Return whether the given window is a shaped window.</div></div>
<div class="ttc" id="close__code_8h_html"><div class="ttname"><a href="close__code_8h.html">close_code.h</a></div></div>
<div class="ttc" id="SDL__shape_8h_html_a6c00a109057f1e6055dd807600171300"><div class="ttname"><a href="SDL__shape_8h.html#a6c00a109057f1e6055dd807600171300">SDL_WindowShapeMode</a></div><div class="ttdeci">struct SDL_WindowShapeMode SDL_WindowShapeMode</div><div class="ttdoc">A struct that tags the SDL_WindowShapeParams union with an enum describing the type of its contents.</div></div>
<div class="ttc" id="SDL__shape_8h_html_aa30948f2699e316a43b740eccebe5c20aca1bc38c9b5179cbed0e9e176cd84d9e"><div class="ttname"><a href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20aca1bc38c9b5179cbed0e9e176cd84d9e">ShapeModeDefault</a></div><div class="ttdoc">The default mode, a binarized alpha cutoff of 1.</div><div class="ttdef"><b>Definition:</b> SDL_shape.h:82</div></div>
<div class="ttc" id="SDL__surface_8h_html"><div class="ttname"><a href="SDL__surface_8h.html">SDL_surface.h</a></div></div>
<div class="ttc" id="unionSDL__WindowShapeParams_html"><div class="ttname"><a href="unionSDL__WindowShapeParams.html">SDL_WindowShapeParams</a></div><div class="ttdoc">A union containing parameters for shaped windows.</div><div class="ttdef"><b>Definition:</b> SDL_shape.h:94</div></div>
<div class="ttc" id="SDL__shape_8h_html_a90d52818802235df9689922be5a4cf5a"><div class="ttname"><a href="SDL__shape_8h.html#a90d52818802235df9689922be5a4cf5a">SDL_SetWindowShape</a></div><div class="ttdeci">DECLSPEC int SDLCALL SDL_SetWindowShape(SDL_Window *window, SDL_Surface *shape, SDL_WindowShapeMode *shape_mode)</div><div class="ttdoc">Set the shape and parameters of a shaped window.</div></div>
<div class="ttc" id="SDL__pixels_8h_html"><div class="ttname"><a href="SDL__pixels_8h.html">SDL_pixels.h</a></div></div>
<div class="ttc" id="structSDL__WindowShapeMode_html_a40ebd8b9a76d982cbd87563386cc05de"><div class="ttname"><a href="structSDL__WindowShapeMode.html#a40ebd8b9a76d982cbd87563386cc05de">SDL_WindowShapeMode::mode</a></div><div class="ttdeci">WindowShapeMode mode</div><div class="ttdoc">The mode of these window-shape parameters.</div><div class="ttdef"><b>Definition:</b> SDL_shape.h:103</div></div>
<div class="ttc" id="SDL__shape_8h_html_aa30948f2699e316a43b740eccebe5c20a1d3ca52e90d5b3086e22120c2899f214"><div class="ttname"><a href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20a1d3ca52e90d5b3086e22120c2899f214">ShapeModeColorKey</a></div><div class="ttdoc">A color key is applied.</div><div class="ttdef"><b>Definition:</b> SDL_shape.h:88</div></div>
<div class="ttc" id="structSDL__WindowShapeMode_html"><div class="ttname"><a href="structSDL__WindowShapeMode.html">SDL_WindowShapeMode</a></div><div class="ttdoc">A struct that tags the SDL_WindowShapeParams union with an enum describing the type of its contents.</div><div class="ttdef"><b>Definition:</b> SDL_shape.h:101</div></div>
<div class="ttc" id="SDL__shape_8h_html_aa30948f2699e316a43b740eccebe5c20"><div class="ttname"><a href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20">WindowShapeMode</a></div><div class="ttdeci">WindowShapeMode</div><div class="ttdoc">An enum denoting the specific type of contents present in an SDL_WindowShapeParams union.</div><div class="ttdef"><b>Definition:</b> SDL_shape.h:80</div></div>
<div class="ttc" id="SDL__shape_8h_html_aa30948f2699e316a43b740eccebe5c20a0ba1cff6129858a1136728ffdc787926"><div class="ttname"><a href="SDL__shape_8h.html#aa30948f2699e316a43b740eccebe5c20a0ba1cff6129858a1136728ffdc787926">ShapeModeBinarizeAlpha</a></div><div class="ttdoc">A binarized alpha cutoff with a given integer value.</div><div class="ttdef"><b>Definition:</b> SDL_shape.h:84</div></div>
<div class="ttc" id="unionSDL__WindowShapeParams_html_a534c40b09588a8075c0a70227753dc56"><div class="ttname"><a href="unionSDL__WindowShapeParams.html#a534c40b09588a8075c0a70227753dc56">SDL_WindowShapeParams::binarizationCutoff</a></div><div class="ttdeci">Uint8 binarizationCutoff</div><div class="ttdoc">A cutoff alpha value for binarization of the window shape's alpha channel.</div><div class="ttdef"><b>Definition:</b> SDL_shape.h:96</div></div>
<div class="ttc" id="SDL__shape_8h_html_a64dba6f6440cf6984d8da868fd758711"><div class="ttname"><a href="SDL__shape_8h.html#a64dba6f6440cf6984d8da868fd758711">SDL_GetShapedWindowMode</a></div><div class="ttdeci">DECLSPEC int SDLCALL SDL_GetShapedWindowMode(SDL_Window *window, SDL_WindowShapeMode *shape_mode)</div><div class="ttdoc">Get the shape parameters of a shaped window.</div></div>
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