不好意思，我剛學BCB不久。想請教各位高手一下：我有幾張圖(BMP)，但是有8bit和24bit和32bit的格式。我想看這幾張圖的任一剖面灰度值(0~255)，但好像只有8bit的圖適用，劃出來沒問題。請教一下，那24bit和32bit的圖怎麼用呢？？(ps：24bit和32bit的圖檔我已先做處理了，已先把圖先處理成純R或純G或純B的圖，附上一張24bit的純G的圖檔) 程式如下，請大家幫我解解答。謝謝~~~ void __fastcall TForm1::Button1Click(TObject *Sender) { if(OpenPictureDialog1->Execute()) Image1->Picture->LoadFromFile(OpenPictureDialog1->FileName); } //------------------------------------------------------------------- void __fastcall TForm1::Button2Click(TObject *Sender) { Byte **PImage0; PImage0=(Byte**)new Byte *[(Image1->Picture->Height)]; int ImageX=(Image1->Picture->Width); int ImageY=(Image1->Picture->Height); for(int y=0; y < ImageY ;y ) { PImage0[y]=(Byte*)Image1->Picture->Bitmap->ScanLine[y]; } if(Form1->RadioButton_Y->Checked) Form1->Edit_X->Text=IntToStr((Image1->Picture->Width)-1); else if(Form1->RadioButton_X->Checked) Form1->Edit_Y->Text=IntToStr((Image1->Picture->Height)-1); Form1->Chart1->Series[0]->Clear(); if(RadioButton_X->Checked==true) { for(int i=0;i < ( Edit_Y->Text.ToInt() );i ) { Form1->Chart1->Series[0]->AddXY(i,PImage0[ i ][Form1->Edit_X->Text.ToInt()],"",clBlack); } } else if(RadioButton_Y->Checked==true) { for(int i=0;i < ( Form1->Edit_X->Text.ToInt() );i ) { Form1->Chart1->Series[0]->AddXY(i,PImage0[ Edit_Y->Text.ToInt() ][i],"",clBlack); } } }

我已知問題出在哪了。謝謝大家~~~