GradientFill 画渐变矩形或3角形

来源：互联网发布：windows清理助手32位编辑：程序博客网时间：2024/04/29 23:59

#pragma comment (lib, "Msimg32")int _tmain(int argc, _TCHAR* argv[]){HDC lWndDC= GetWindowDC(NULL);RECT lrtRect;lrtRect.left = 0;lrtRect.top = 0;lrtRect.right = 500;lrtRect.bottom = 500;COLORREF col_from = RGB(255, 121,121);COLORREF col_to = RGB(255, 121,0);BOOL vert_grad=FALSE;TRIVERTEX vert[2];GRADIENT_RECT mesh;vert[0].x = lrtRect.left;vert[0].y = lrtRect.top;vert[0].Alpha = 0x0000;vert[0].Blue = GetBValue(col_from)<<8;vert[0].Green = GetGValue(col_from)<<8;vert[0].Red = GetRValue(col_from)<<8;vert[1].x = lrtRect.right;vert[1].y = lrtRect.bottom; vert[1].Alpha = 0x0000;vert[1].Blue = GetBValue(col_to) <<8;vert[1].Green = GetGValue(col_to) <<8;vert[1].Red = GetRValue(col_to) <<8;mesh.UpperLeft = 0;mesh.LowerRight = 1; GradientFill( lWndDC, vert, 2, &mesh, 1, vert_grad ? GRADIENT_FILL_RECT_V : GRADIENT_FILL_RECT_H ); DeleteDC(lWndDC); Sleep(2000); return 0;}