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分享【 alphablend？ 】
Graphics::TBitmap *pBitmap = new Graphics::TBitmap();
Graphics::TBitmap *pBitmap2 = new Graphics::TBitmap();
pBitmap->LoadFromFile("D:\\Borland Shared\\Images\\Splash\\256color\\factory.bmp ");
BLENDFUNCTION bf;
bf.AlphaFormat=0;
bf.BlendFlags=0;
bf.BlendOp=AC_SRC_OVER;
bf.SourceConstantAlpha=130;//
AlphaBlend(pBitmap2->Handle, 0, 0, 100, 100,
pBitmap->Handle, 0, 0, 100, 100, bf);
TRect dest, sourse;
dest = Rect(0,0,100,100);
sourse = Rect(0,0,100,100);
Form1->Canvas->CopyRect( dest, pBitmap2->Canvas,sourse);
//-----------------------------------------------------------
窗体一片空白。。。。。。？？？？？？？？
Graphics::TBitmap *pBitmap2 = new Graphics::TBitmap();
pBitmap->LoadFromFile("D:\\Borland Shared\\Images\\Splash\\256color\\factory.bmp ");
BLENDFUNCTION bf;
bf.AlphaFormat=0;
bf.BlendFlags=0;
bf.BlendOp=AC_SRC_OVER;
bf.SourceConstantAlpha=130;//
AlphaBlend(pBitmap2->Handle, 0, 0, 100, 100,
pBitmap->Handle, 0, 0, 100, 100, bf);
TRect dest, sourse;
dest = Rect(0,0,100,100);
sourse = Rect(0,0,100,100);
Form1->Canvas->CopyRect( dest, pBitmap2->Canvas,sourse);
//-----------------------------------------------------------
窗体一片空白。。。。。。？？？？？？？？
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whitelion 2001-08-24
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cc
luou 2001-08-24
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[Linker Error] Unresolved external 'AlphaBlend' referenced from D:\PROGRAM FILES\BORLAND\CBUILDER5\PROJECTS\MYPROJECTS\ALPHABLEND\UNIT1.OBJ
??
还要加什么头文件么？
??
还要加什么头文件么？
HEROIN 2001-08-24
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我怎么编译出错？
ddeng 2001-08-24
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呵呵，看不懂
kekeguo 2001-08-24
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帮我看一下呀。。。
kekeguo 2001-08-24
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要有<windows.h>和msimg32.lib
哪位大哥会用alphablend呀?救命!
哪位大哥会用alphablend呀?救命!
