我有寫出我要擷取webcam的圖片
RUN都可以~但是跑都會出現[C Warning] Unit2.cpp(311): W8004 'number' is assigned a value that is never used的字樣


[code cpp]
void __fastcall Twebcam::Button21Click(TObject *Sender)
{
int number=0;
TCanvas *csBuf = new TCanvas;
HDC hDC = GetDC(Panel1->Handle);
csBuf->Handle = hDC;
Graphics::TBitmap *CapImg = new Graphics::TBitmap();
CapImg->Width = Panel1->Width; //設定大小
CapImg->Height = Panel1->Height;
CapImg->PixelFormat=pf24bit; //設定格式
[/code]
//Image1->Picture->Assign(CapImg);
String a[6] = {".jpg",".jpeg",".bmp",".ico",".emf",".wmf"};
SavePictureDialog1->Execute();
CapImg->SaveToFile(SavePictureDialog1->FileName a[SavePictureDialog1->FilterIndex]);
ReleaseDC(0, hDC);
delete CapImg;
ShowMessage("擷取完畢");
但我還是可以成功的存檔~能不能請各位幫我看一下~謝謝!!

compiler的警告訊息已經告訴你是怎麼回事囉 ^_^

是在說有些沒有使用到的值嗎??
是指上述來源碼的哪部分??

'number' is assigned a value that is never used
翻成中文: number這個變數已經給予一個數值且從來沒有被用到

謝謝你~~
我又上到一課了!!