コードは上です。PrintView で PrintPreview に 123456 が表示されない理由がわかりません?? 私はVisual Studio 2012 WindowsフォームC ++を使用しています
private: System::Void button4_Click(System::Object^ sender, System::EventArgs^ e) {
printPreviewDialog1->Document=printDocument1;
printPreviewDialog1->Location = System::Drawing::Point( 400, 300 );
printPreviewDialog1->ShowDialog();
}
private: System::Void printDocument1_PrintPage(System::Object^ sender, System::Drawing::Printing::PrintPageEventArgs^ e) {
System::Drawing::Bitmap^ pBitmap = gcnew System::Drawing::Bitmap( groupBox2->ClientRectangle.Width, groupBox2->ClientRectangle.Height );
groupBox2->DrawToBitmap(pBitmap, groupBox2->ClientRectangle);
}
public: System::Drawing::Graphics^ g;
private: System::Void button2_Click_1(System::Object^ sender, System::EventArgs^ e) {
g = groupBox2->CreateGraphics();
groupBox2->Refresh();
g->RotateTransform(-90.0F);
drawString1erPanneau="123456";
System::Drawing::Font^ drawFont=gcnew System::Drawing::Font("Microsoft Sans Serif", 9, FontStyle::Bold);
SolidBrush^ drawBrush=gcnew SolidBrush(Color::FromArgb(51,153,255));
Pen^ whitePen=gcnew Pen (Color::White);
float x=-320.0F;
float y1=216.0F;
float width=70.0F;
float height=15.0F;
RectangleF drawRect1erPanneau=RectangleF(x,y1,width,height);
g->DrawRectangle(whitePen, x,y1, width, height);
g->DrawString(drawString1erPanneau,drawFont,drawBrush,drawRect1erPanneau);
}