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Change the hight sign.
Read the MSDN snippet about StretchBlt:
StretchBlt creates a mirror image of a bitmap if the signs of the nWidthSrc and nWidthDest parameters or if the nHeightSrc and nHeightDest parameters differ. If nWidthSrc and nWidthDest have different signs, the function creates a mirror image of the bitmap along the x-axis. If nHeightSrc and nHeightDest have different signs, the function creates a mirror image of the bitmap along the y-axis.
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Anyone has an idea on how to write Outlook Express extensions like OE-QuoteFix?
Regards,
BB
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Hi,
I am unable to watch a static variable in a watch window while debugging. The compiler is Visual C++ 6.0 (without any Service Pack).
Please note that I m not taking about static member variables of a class. I am talking about static variables local to a procedure.e.g
void procedure(void)
{
static int i;
... code follows ...
... code follows ...
}
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Do you have a breakpoint set in procedure()? What error/message does the debugger give you when trying to view those variables?
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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I can't see them too - the debugger IDE behaves as if they didn't exist.
Regards,
BB
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So if you have a non-static variable in that same function, will the debugger see it?
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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Yes, of course it will.
Regards,
BB
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Definitely, in order to watch, I have to set a breakpoint. The debugger gives this error message.
CXX0017: Error: symbol "i" not found
What I understand here is that static variables are not created and destroyed when a procedure is called. They have a lifetime of program. Why debugger is showing this message is because, I have set the breakpoint in procedure(), so debugger has a context of procedure(). So, it is unable to provide a watch on "i".
I tried to watch "i" in WinMain() but again WinMain() is also a function. Now, what I left is that declare a global variable, set a breakpoint there and watch "i". Perhaps it work.
The other approach I am using is having a pointer to this static variable "i" in procedure(). In this way, I am able to watch the contents of static variable "i". e.g.
void procedure(void)
{
static int i;
int * pi = &i;
...... code follows ......
}
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hashimsaleem wrote:
Why debugger is showing this message is because, I have set the breakpoint in procedure(), so debugger has a context of procedure(). So, it is unable to provide a watch on "i".
The debugger should show any and all variables that have "current" scope, whether they are global, static, or local. I just tried this and it does work. Something else is at play here.
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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what do you mean by "current" scope? Please explain.
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int a;
void procedure( int b )
{
static int c;
int d;
}
void foo( int e )
{
}
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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This is however VC6-only problem (I have SP4 on it). Under .NET everything is clearly visible. 
Regards,
BB
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Hi guys
I'd like to ask the user to save his Doc before exit in my SDI app and then do like he pressed the Save button in menu.
Where I have to do the call, and how?
Best Regards
Doc
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With a "normal" SDI app, everything is already in place. If the document's data is serializable, put your code in the Serialize() method. Otherwise, put your code in the OnSaveDocument() method.
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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You need to monitor when the user has made a change in the document which you count as significant enough to require saving. For example the user updated a text box on your form, or drew a circle, or whatever. When that happens you must call the SetModifiedFlag(TRUE) method of your document class. The framework will then automatically prompt the user to save the document if they close the window.
Of course you still need to add code in OnSaveDocument or Serialize to actually do the work of saving to a file just as the previous user indicated.
Hope it helps...
--
The Obliterator
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At some point use SetModifiedFlag(TRUE) and before closing have SaveModified() in the code.
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Is there any Windows API function to determine the dependent DLLs of an application or a DLL?
Arash Sabet
Computer Engineer
E-mail: afifi@sympatico.ca
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No, you'd have to roll your own. It's a matter of parsing through the import tables of the file. There are utilities in place for this already, however. One of them, Depends, ships with Visual Studio.
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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So, isn't there any function or method to parse the import table? I have to load the dependent DLLs dynamically through my application. I have no more options to use the utilities? I appreciate it if you have more info.
Regards
Arash Sabet
Computer Engineer
E-mail: afifi@sympatico.ca
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Arash Sabet wrote:
So, isn't there any function or method to parse the import table?
No, you'd have to make your own.
Arash Sabet wrote:
I have to load the dependent DLLs dynamically through my application.
Why can't you just let the DLL/EXE load its own?
Arash Sabet wrote:
I have no more options to use the utilities?
Don't know what you mean by this.
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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My question is that whether there any API function in VC++ or C# or... to parse the import table? What's the clean way to parse the impprt table?
thanks.
Arash Sabet
Computer Engineer
E-mail: afifi@sympatico.ca
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Arash Sabet wrote:
My question is that whether there any API function in VC++ or C# or... to parse the import table?
As I've already indicated, there is nothing built-in. You'd have to roll your own.
Arash Sabet wrote:
What's the clean way to parse the impprt table?
Knowing the layout of the PE file format is very helpful.
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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Thanks David,
Just my final query:
Are the DLLs that are loaded dynamically by AfxLoadLibrary(..) function included in the PE?
Arash Sabet
Computer Engineer
E-mail: afifi@sympatico.ca
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No, only libraries that are implicitly linked are stored in the import table.
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?
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