[求助]怎么样让图片出现翻转(页 1) - C++论坛 - C++ Builder

lzhp040424 发表于 2007-7-18 00:11

[求助]怎么样让图片出现翻转

各位大虾: 请问一下,怎么样用C++ Builder6.0实现图片旋转90度和180度.
[align=right][color=#000066][此贴子已经被作者于2007-7-18 0:12:26编辑过][/color][/align]

热情依然 发表于 2007-7-29 16:59

//---------------------------------------------------------------------------
#include <vcl.h> #pragma hdrstop
#include "Unit1.h" //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma resource "*.dfm" TForm1 *Form1; //--------------------------------------------------------------------------- __fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner) { } //--------------------------------------------------------------------------- void __fastcall TForm1::Button1Click(TObject *Sender) { Graphics::TBitmap *bufferbitmap = new Graphics::TBitmap(); bufferbitmap->Width = Image1->Height; bufferbitmap->Height = Image1->Width;
 static TRect sourcepix,destpix, fullbufferimage, fulldestimage; fullbufferimage.left = 0; fullbufferimage.Top = bufferbitmap->Height; fullbufferimage.Right = bufferbitmap->Width; fullbufferimage.Bottom = 0;
 for( int y=0; y < Image1->Height; ++y) { for( int x =0; x < Image1->Width; ++x) { sourcepix.Left = x; sourcepix.Top = y+1; sourcepix.Right = x+1; sourcepix.Bottom = y; destpix.Left = y; destpix.Top = bufferbitmap->Height - x; destpix.Right = y + 1; destpix.Bottom = bufferbitmap->Height - x -1; bufferbitmap->Canvas->CopyRect(destpix,Image1->Canvas,sourcepix); } } Image1->Width = bufferbitmap->Width; Image1->Height = bufferbitmap->Height; Image1->Picture->Bitmap->Width = bufferbitmap->Width; Image1->Picture->Bitmap->Height = bufferbitmap->Height; Image1->Canvas->CopyRect(fullbufferimage,bufferbitmap->Canvas,fullbufferimage);
} //---------------------------------------------------------------------------

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