gistfile1.cpp

DWORD CALLBACK ThreadProc_CCB(LPVOID lpVData){
  MyCreateThreadData *lpData = (MyCreateThreadData*)lpVData;
	HDC hdc_main = lpData->hDC_Base;

	double dHLS[3] , dRGB[3];
	int color_rgb[3];
	double plus_h = 360.0 / (ColorBoxSizeX - 1) , plus_s = 1.0 / (ColorBoxSizeY - 1);

	HSConvColorData convdata;
	convdata.ModeFlag = 1;
	convdata.Color.Pointer.lpInput = dHLS;
	convdata.Color.Pointer.lpOutput = dRGB;

	SetHSPB_Range(lpData->hProgress , 0 , ColorBoxLightNums);
	for (int i = 0; i <= ColorBoxLightNums; i++)
	{
		dHLS[1] = (double)i  / (double)ColorBoxLightNums;
		hdc_colorbox[i] = CreateCompatibleDC(hdc_main);
		SelectObject(hdc_colorbox[i] , CreateCompatibleBitmap(hdc_main , ColorBoxSizeX , ColorBoxSizeY));
		for (int y = 0; y < ColorBoxSizeY; y++)
		{
			dHLS[2] = 1.0 -  y * plus_s ;
			for (int x = 0; x < ColorBoxSizeX; x++)
			{
				dHLS[0] =  x * plus_h;
				HSColor2_HLStoRGB(&convdata);
				for (int j = 0; j < 3; j++)	color_rgb[j] = (int)dRGB[j];
				SetPixel(hdc_colorbox[i] , x , y , RGB(color_rgb[0],color_rgb[1],color_rgb[2]));
			}
		}
		HSPB_SetPos(lpData->hProgress , i);
	}
	Sleep(1000);
	ExitThread(0);
	return 0;
}