tony0419
June 9th, 2003, 12:58 AM
Hello,
I use Stretchblt and DrawDibDraw to draw a 800x600xTrueColor image(Dest and Source are independent DIB),i found DrawDibDraw is slow as Stretchblt,why? the dwflag of DrawDibDraw is 0.
Stretchblt hdc2,0,0,800,600,hdc1,0,0,800,600,vbsrccopy
DrawDibDraw hdd2,hdc2,0,0,800,600,BI,lpRGB,0,0,800,600,0
Could you help me, and tell me dwflag values , thanks a lot!
I use Stretchblt and DrawDibDraw to draw a 800x600xTrueColor image(Dest and Source are independent DIB),i found DrawDibDraw is slow as Stretchblt,why? the dwflag of DrawDibDraw is 0.
Stretchblt hdc2,0,0,800,600,hdc1,0,0,800,600,vbsrccopy
DrawDibDraw hdd2,hdc2,0,0,800,600,BI,lpRGB,0,0,800,600,0
Could you help me, and tell me dwflag values , thanks a lot!