假設我在Form上拉了10個ImageList物件,每個物件裡都有各別的圖, 我必須根據所選擇的條件選用適當的ImageList去秀出我要的圖, 範例程式碼如下所示:
[code cpp]
i=random(10);
switch (getCategory)
{
case 0: chImage="ImageList1"; break;
case 1: chImage="ImageList2"; break;
..............
case 9: chImage="ImageList10"; break;
}
ShowPic(chImage,i);
// 可以這樣用嗎?

void __fastcall TForm1::ShowPic(AnsiString selImg,int idx) {
// 可以這樣傳嗎?
suiPanel1->Repaint();
HDC dc = GetDC(suiPanel1->Handle);
try{
TCanvas *canvas=new TCanvas();
try{
canvas->Handle=dc;
selImg->Draw(canvas,20,20,idx,true);
// 這裡該如何修改?
}
__finally{
delete canvas;
}
}
__finally{
ReleaseDC(suiPanel1->Handle, dc);
}
}
[/code]
請問標示的部份該如何表示,有辦法選擇物件去使用嗎?
請幫忙,謝謝.

編輯記錄

^_^

[code cpp]
(1)
//---------------------------------------------------------------------------
AnsiString chImage = "ImageList" IntToStr(getCategory 1);//1~10
ShowPic(chImage, random(10));
//---------------------------------------------------------------------------
(2)
//---------------------------------------------------------------------------
TImageList *L = (TImageList*)FindComponent(selImg);
if(L&&idxCount)
L->Draw(canvas,20,20,idx,true);
//---------------------------------------------------------------------------
[/code]