2011-10-20 74 views
2

我有一個資源在我的編(* .bmp圖像)。當我啓動一個計時器時,我的圖像應該旋轉,直到我點擊「暫停」。我需要一個解釋我如何做到這一點的樣本。如何動態旋轉圖片?

目前我使用此代碼:

void rotatewaiticon() 
{ 
Graphics::TBitmap *bmpOriginal = new Graphics::TBitmap(); 
    //bmpOriginal->LoadFromResourceName(0,"bmpcrug"); 
    bmpOriginal->LoadFromFile("degrees.bmp"); 
    FormMain->Image65->Picture->Assign(bmpOriginal); 
Graphics::TBitmap *bmpCopy = new Graphics::TBitmap(); 

    bmpCopy->Width = bmpOriginal->Height; 
    bmpCopy->Height = bmpOriginal->Width; 

    int wOr = bmpOriginal->Width, hOr = bmpOriginal->Height; 
    for(int x = 0; x < wOr; x++) 
    { 
     for(int y = 0; y < hOr; y++) 
     { 
      bmpCopy->Canvas->Pixels[hOr - y][x] = bmpOriginal->Canvas->Pixels[x][y]; 
     } 
    } 
/**/FormMain->Image65->Picture->Assign(bmpCopy); 
    bmpCopy->SaveToFile("degrees.bmp"); 

    delete bmpOriginal, bmpCopy; 
} 

但我不明白的方式與此文件的工作,但不保存在磁盤上。

回答