// ========================================================================
// THIS TECHNICAL INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//
// Copyright 1997-1998 Giuseppe "Jo" Parrello. All Rights Reserved.
//
// Site : http://space.tin.it/computer/giparrel
// E-Mail : joparrel@tin.it, giusparr@tin.it, giparre@tin.it
//
// Bugs, Tips, and Deepenings. Only for 5.02 users (unless specified).
//
// May 16, 1998.
//
// ========================================================================
-----------------------------------------------------------------
----- TI000008: (BUG on 5.00, 5.01 and 5.02 release) -------
-----------------------------------------------------------------
The TWindow::GetWindowPlacement function has a bug.
You must modify the file "WINDOW.H" to solve it.
Insert before the line
return ::GetWindowPlacement(GetHandle(), place);
the following line:
place.length = sizeof(WINDOWPLACEMENT);
As described on Win32 API Help File.
-----------------------------------------------------------------
----- TI000009: (BUG on 5.00, 5.01 and 5.02 release) -------
-----------------------------------------------------------------
The TWindow::SetWindowPlacement function has a bug.
You must modify the file "WINDOW.H" to solve it.
Insert before the line
return ::SetWindowPlacement(GetHandle(), place);
the following line:
place.length = sizeof(WINDOWPLACEMENT);
As described on Win32 API Help File.
-----------------------------------------------------------------
----- TI000010: (Borland C++ 5.01 e C++ 5.02) -------
-----------------------------------------------------------------
Q. How can I call my application passing it a filename?
A. If you've used AppExpert to build your application, you
must modify the "ProcessCmdLine" function on TApplication class.
The code generated by AppExpert is:
void TBUTTONApp::ProcessCmdLine(char * CmdLine)
{
TCmdLine cmd(CmdLine);
while (cmd.Kind != TCmdLine::Done) {
if (cmd.Kind == TCmdLine::Option) {
if (strnicmp(cmd.Token, "unregister", cmd.TokenLen) == 0) {
UnRegisterInfo();
return;
}
}
}
RegisterInfo();
}
To add a simple command-line parser, you convert the code in
this way:
void TBUTTONApp::ProcessCmdLine(char * CmdLine)
{
TCmdLine cmd(CmdLine);
char buf[_MAX_PATH];
while (cmd.Kind != TCmdLine::Done) {
if (cmd.Kind == TCmdLine::Option) {
if (strnicmp(cmd.Token, "unregister", cmd.TokenLen) == 0) {
UnRegisterInfo();
return;
}
}
if (cmd.Kind == TCmdLine::Name)
{
strncpy(buf, cmd.Token, cmd.TokenLen);
buf[cmd.TokenLen] = '\0';
TDocTemplate* tpl = GetDocManager()->MatchTemplate(buf);
if (tpl)
GetDocManager()->CreateDoc(tpl, buf);
}
cmd.NextToken(true);
}
RegisterInfo();
}
For example, if you pass the following line:
myapp apxprev.cpp apxprint.cpp myapp.cpp
these three files will be opened in your MDI application.
NOTE: the function "ProcessCmdLine" is generated if you've included
the AppExpert's "registry support" feature.
-----------------------------------------------------------------
----- TI000011: (Borland C++ 5.01 e C++ 5.02) -------
-----------------------------------------------------------------
Q. I have a maximized main window and I go to Print Preview Page.
I maximize the Preview Page Window and when I go back the previous
window is not maximized (it's in normal size). How can I solve
this problem?
A. If you used AppExpert to build your application, the code is:
void MyappMDIClient::CmFilePrintPreview()
{
Myapp* theApp = TYPESAFE_DOWNCAST(GetApplication(), Myapp);
if (theApp) {
if (!theApp->Printer)
theApp->Printer = new TPrinter(GetApplication());
theApp->Printing++;
TApxPreviewWin* prevW = new TApxPreviewWin(Parent, theApp->Printer, GetActiveMDIChild()->GetClientWindow(), "Print Preview", new TLayoutWindow(0));
prevW->Create();
TFrameWindow * mainWindow = GetApplication()->GetMainWindow();
TRect r = mainWindow->GetWindowRect();
prevW->MoveWindow(r);
prevW->ShowWindow(SW_SHOWNORMAL);
mainWindow->ShowWindow(SW_HIDE);
GetApplication()->BeginModal(GetApplication()->GetMainWindow());
r = prevW->GetWindowRect();
mainWindow->MoveWindow(r);
mainWindow->ShowWindow(SW_SHOWNORMAL);
prevW->Destroy();
delete prevW;
theApp->Printing--;
}
}
Change the code as follows:
void MyappMDIClient::CmFilePrintPreview()
{
Myapp* theApp = TYPESAFE_DOWNCAST(GetApplication(), Myapp);
if (theApp) {
if (!theApp->Printer)
theApp->Printer = new TPrinter(GetApplication());
theApp->Printing++;
TApxPreviewWin* prevW = new TApxPreviewWin(Parent, theApp->Printer, GetActiveMDIChild()->GetClientWindow(), "Print Preview", new TLayoutWindow(0));
prevW->Create();
TFrameWindow * mainWindow = GetApplication()->GetMainWindow();
prevW->SetExStyle(prevW->GetExStyle() | WS_EX_APPWINDOW);
WINDOWPLACEMENT mainPos;
mainPos.length = sizeof(WINDOWPLACEMENT); // to solve a horrific bug on TWindow class
mainWindow->GetWindowPlacement(&mainPos);
prevW->SetWindowPlacement(&mainPos);
mainWindow->ShowWindow(SW_HIDE);
GetApplication()->BeginModal(GetApplication()->GetMainWindow());
mainPos.length = sizeof(WINDOWPLACEMENT); // to solve a horrific bug on TWindow class
prevW->GetWindowPlacement(&mainPos);
mainWindow->SetWindowPlacement(&mainPos);
prevW->Destroy();
delete prevW;
theApp->Printing--;
}
}