int
DEMOGL_TextureUpdateWithFBRegion(
	const int iX,
	const int iY,
	const int iWidth,
	const int iHeight,
	const int iXDest,
	const int iYDest,
	const GLuint iTextureID,
	const int iDimensions
);
	

iX

Specifies the X-coordinate of the left lower corner of the region of the backbuffer which should be read for the texture data. This is a screencoordinate in pixels, starting from the left of the screen.

iY

Specifies the Y-coordinate of the left lower corner of the region of the backbuffer which should be read for the texture data. This is a screencoordinate in pixels, starting from the bottom of the screen.

iWidth

Specifies the width of the texture, which pixeldata is stored in the buffer pointed by pbyBuffer in pixels. Must be 2ⁿ for some integer n.

iHeight

Specifies the height of the texture, which pixeldata is stored in the buffer pointed by pbyBuffer in pixels. Must be 2ⁿ for some integer n.

iXDest

Specifies the X-coordinate of the left lower corner in the texture data where the region should be placed. This is in pixels.

iYDest

Specifies the Y-coordinate of the left lower corner in the texture data where the region should be placed. This is in pixels.

iTextureID

Specifies the TextureID of the texture which texturedata should be partial overwritten with the region from the framebuffer, as specified.

iDimensions

Specifies the amount of dimensions of the texture, needed for the upload process of the texture data to OpenGL. Can be one of the following values: DGL_TEXTUREDIMENSION_1D for 1D textures (only iWidth and iXDest is used), DGL_TEXTUREDIMENSION_2D for 2D textures (only iWidth, iHeight, iXDest and iYDest are used) or DGL_TEXTUREDIMENSION_3D for 3D textures, which are currently not implemented in full in DemoGL.