本文整理汇总了C++中Bitmap::GetPaletteSize方法的典型用法代码示例。如果您正苦于以下问题：C++ Bitmap::GetPaletteSize方法的具体用法？C++ Bitmap::GetPaletteSize怎么用？C++ Bitmap::GetPaletteSize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Bitmap的用法示例。
在下文中一共展示了Bitmap::GetPaletteSize方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: createPreview
/**
* Utility method, creates the preview image bitmap and modifies the palette to
* be a grayscale palette.
* @param size Size of the image.
* @param pixels The pixels.
*/
Gdiplus::Bitmap* PreviewControl::createPreview( const FitsLiberator::Size& size, Byte* pixels ) {
Bitmap* previewImage = new Bitmap( size.width, size.height, size.width, PixelFormat8bppIndexed, pixels );
UInt paletteSize = previewImage->GetPaletteSize();
if( paletteSize > 0 ) {
ColorPalette* palette = (ColorPalette*)malloc( paletteSize );
previewImage->GetPalette( palette, paletteSize );
for( UInt i = 0; i < palette->Count; i++ ) {
palette->Entries[i] = Gdiplus::Color::MakeARGB( 0xFF, (Byte)i, (Byte)i, (Byte)i );
}
previewImage->SetPalette( palette );
free( palette );
}
return previewImage;
}示例2: createMask
/**
* Utiliy method, creates a mask bitmap and modifes the palette accordingly.
* @param size Size of the mask.
* @param color Color of the mask.
* @param pixels The pixels.
*/
Gdiplus::Bitmap* PreviewControl::createMask( const FitsLiberator::Size& size, const Gdiplus::Color& color, Byte* pixels ) {
Bitmap* mask = new Bitmap( size.width, size.height, size.width, PixelFormat8bppIndexed, pixels );
UInt paletteSize = mask->GetPaletteSize();
if( paletteSize > 0 ) {
ColorPalette* palette = (ColorPalette*)malloc( paletteSize );
mask->GetPalette( palette, paletteSize );
if( palette->Count >= 256 ) {
palette->Entries[255] = 0; // Transparent black
palette->Entries[0] = Gdiplus::Color::MakeARGB( 0xFF, color.GetR(), color.GetG(), color.GetB() );
}
mask->SetPalette( palette );
free( palette );
}
return mask;
}