本文整理汇总了C++中CWinApp::DevModeChange方法的典型用法代码示例。如果您正苦于以下问题：C++ CWinApp::DevModeChange方法的具体用法？C++ CWinApp::DevModeChange怎么用？C++ CWinApp::DevModeChange使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CWinApp的用法示例。
在下文中一共展示了CWinApp::DevModeChange方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: OnSelectPrinter
void CBCGPRibbonBackstagePagePrint::OnSelectPrinter()
{
CWinApp* pApp = AfxGetApp();
if (pApp == NULL)
{
ASSERT(FALSE);
return;
}
int nSelection = GetPrinterSelection ();
if (nSelection < 0)
{
ASSERT(FALSE);
return;
}
PRINTDLG* dlgPrint = GetPrintDlg();
ASSERT(dlgPrint != NULL);
LPDEVNAMES lpDevNames = NULL;
if (dlgPrint->hDevNames != NULL)
{
lpDevNames = (LPDEVNAMES)::GlobalLock(dlgPrint->hDevNames);
ASSERT(lpDevNames != NULL);
}
XPrinterInfo& info = m_Printers[nSelection];
if (lstrcmp((LPCTSTR)lpDevNames + lpDevNames->wDriverOffset, info.strDriverName) != 0 ||
lstrcmp((LPCTSTR)lpDevNames + lpDevNames->wDeviceOffset, info.strPrinterName) != 0 ||
lstrcmp((LPCTSTR)lpDevNames + lpDevNames->wOutputOffset, info.strPortName) != 0)
{
::GlobalUnlock(dlgPrint->hDevNames);
// Compute size of DEVNAMES structure from PRINTER_INFO_2's data
int drvNameLen = info.strDriverName.GetLength () + 1; // driver name
int ptrNameLen = info.strPrinterName.GetLength () + 1; // printer name
int porNameLen = info.strPortName.GetLength () + 1; // port name
// Allocate a global handle big enough to hold DEVNAMES.
HGLOBAL hDevNames = GlobalAlloc(GHND, sizeof(DEVNAMES) + (drvNameLen + ptrNameLen + porNameLen) * sizeof(TCHAR));
DEVNAMES* pDevNames = (DEVNAMES*)GlobalLock(hDevNames);
ASSERT(pDevNames != NULL);
// Copy the DEVNAMES information from PRINTER_INFO_2
// tcOffset = TCHAR Offset into structure
int tcOffset = sizeof(DEVNAMES) / sizeof(TCHAR);
ASSERT(sizeof(DEVNAMES) == tcOffset * sizeof(TCHAR));
pDevNames->wDriverOffset = (WORD)tcOffset;
memcpy((LPTSTR)pDevNames + tcOffset, (LPCTSTR)info.strDriverName, drvNameLen * sizeof(TCHAR));
tcOffset += drvNameLen;
pDevNames->wDeviceOffset = (WORD)tcOffset;
memcpy((LPTSTR)pDevNames + tcOffset, (LPCTSTR)info.strPrinterName, ptrNameLen * sizeof(TCHAR));
tcOffset += ptrNameLen;
pDevNames->wOutputOffset = (WORD)tcOffset;
memcpy((LPTSTR)pDevNames + tcOffset, (LPCTSTR)info.strPortName, porNameLen * sizeof(TCHAR));
pDevNames->wDefault = 0;
::GlobalUnlock(hDevNames);
dlgPrint->hDevNames = hDevNames;
pApp->SelectPrinter(dlgPrint->hDevNames, NULL, TRUE);
pApp->DevModeChange((LPTSTR)(LPCTSTR)info.strPrinterName);
pApp->GetPrinterDeviceDefaults (dlgPrint);
short dmPaperSize = 0;
if (dlgPrint->hDevMode != NULL)
{
LPDEVMODE lpDevMode = (LPDEVMODE)::GlobalLock (dlgPrint->hDevMode);
dmPaperSize = lpDevMode->dmPaperSize;
::GlobalUnlock (dlgPrint->hDevMode);
}
BOOL bNotify = m_wndPaper.GetCount () > 0;
UpdatePrinterProperties(TRUE);
UpdatePapers (dmPaperSize);
UpdatePrinterProperties(FALSE, bNotify);
}
}