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POError with displaying an .bmp image using mfc dialog
 

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  1. POError with displaying an .bmp image using mfc dialog
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    <p>I am trying to display a bitmap image using MFC application. I am using a browse button to select file which is working properly. But when I try to load an image by double clicking on the file, the application is launched, but the image is not displayed.</p> <p>Here is my code for browse button and function to open a double clicked image.</p> <pre><code>void COpenImageDlg::OnBnClickedButton1() { // TODO: Add your control notification handler code here CString path; CFileDialog dlg(TRUE); int result=dlg.DoModal(); if(result==IDOK) { path=dlg.GetPathName(); UpdateData(FALSE); } HBITMAP hBmp = (HBITMAP)::LoadImage(NULL, path, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE|LR_CREATEDIBSECTION); CBitmap bmp; bmp.Attach(hBmp); CClientDC dc(this); CDC bmDC; bmDC.CreateCompatibleDC(&amp;dc); CBitmap *pOldbmp = bmDC.SelectObject(&amp;bmp); BITMAP bi; bmp.GetBitmap(&amp;bi); dc.BitBlt(0,0,bi.bmWidth,bi.bmHeight,&amp;bmDC,0,0,SRCCOPY); bmDC.SelectObject(pOldbmp); } void COpenImageDlg::OpenImage1(CString path) { //CString path; CFileDialog dlg(TRUE); int result=dlg.DoModal(); if(result==IDOK) { path=dlg.GetPathName(); UpdateData(FALSE); } HBITMAP hBmp = (HBITMAP)::LoadImage(NULL, path, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE|LR_CREATEDIBSECTION); CBitmap bmp; bmp.Attach(hBmp); CClientDC dc(this); CDC bmDC; bmDC.CreateCompatibleDC(&amp;dc); CBitmap *pOldbmp = bmDC.SelectObject(&amp;bmp); BITMAP bi; bmp.GetBitmap(&amp;bi); dc.BitBlt(0,0,bi.bmWidth,bi.bmHeight,&amp;bmDC,0,0,SRCCOPY); } </code></pre> <p>Init class :</p> <p>`BOOL COpenImageApp::InitInstance() { // InitCommonControlsEx() is required on Windows XP if an application // manifest specifies use of ComCtl32.dll version 6 or later to enable // visual styles. Otherwise, any window creation will fail.</p> <pre><code>INITCOMMONCONTROLSEX InitCtrls; InitCtrls.dwSize = sizeof(InitCtrls); // Set this to include all the common control classes you want to use // in your application. InitCtrls.dwICC = ICC_WIN95_CLASSES; InitCommonControlsEx(&amp;InitCtrls); CWinApp::InitInstance(); AfxEnableControlContainer(); // Create the shell manager, in case the dialog contains // any shell tree view or shell list view controls. CShellManager *pShellManager = new CShellManager; // Standard initialization // If you are not using these features and wish to reduce the size // of your final executable, you should remove from the following // the specific initialization routines you do not need // Change the registry key under which our settings are stored // TODO: You should modify this string to be something appropriate // such as the name of your company or organization SetRegistryKey(_T("Local AppWizard-Generated Applications")); COpenImageDlg dlg; m_pMainWnd = &amp;dlg; INT_PTR nResponse = dlg.DoModal(); char* buff; char* command_line = GetCommandLine(); buff = strchr(command_line, ' '); buff++; buff = strchr(buff, ' '); buff++; buff = strchr(buff, ' '); buff++; if (buff != NULL) { HBITMAP hBmp = (HBITMAP)::LoadImage(NULL, "C:\Users\Raguvaran\Desktop\tiger.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE|LR_CREATEDIBSECTION); CBitmap bmp; bmp.Attach(hBmp); dlg.RedrawWindow(); CClientDC dc(m_pMainWnd); CDC bmDC; bmDC.CreateCompatibleDC(&amp;dc); CBitmap *pOldbmp = bmDC.SelectObject(&amp;bmp); BITMAP bi; bmp.GetBitmap(&amp;bi); dc.BitBlt(0,0,bi.bmWidth,bi.bmHeight,&amp;bmDC,0,0,SRCCOPY); } //RedrawWindow(dlg, NULL, NULL, RDW_INVALIDATE); //UpdateWindow(dlg); if (nResponse == IDOK) { // TODO: Place code here to handle when the dialog is // dismissed with OK } else if (nResponse == IDCANCEL) { // TODO: Place code here to handle when the dialog is // dismissed with Cancel } // Delete the shell manager created above. if (pShellManager != NULL) { delete pShellManager; } // Since the dialog has been closed, return FALSE so that we exit the // application, rather than start the application's message pump. return FALSE; </code></pre> <p>}`</p> <p>I used the same code for browse button and it displays the image. But when I double click the file, the image is not displayed. Please tell me what I am doing wrong.</p>
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