|
Nishad S wrote: long n can be checked something like ( n > 0x7FFFFFFF ).
How? If you add 1 to that value, it becomes negative, thus failing the test.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
|
|
|
|
|
Yes. I have updated my reply.
((unsigned long) n > 0x7FFFFFFF)
- ns ami -
|
|
|
|
|
I have not tried this.
According to the docs[^] you can use _controlfp() to unmask floating point exceptions, which are all masked by default, by specifying the _MCW_EM mask.
Also maybe check out _fpieee_flt()[^] and _fpclass()[^]
You may be right
I may be crazy
-- Billy Joel --
Within you lies the power for good - Use it!
|
|
|
|
|
It looks exactly the type of tip that I was looking for! 
I'll let you know if it is the right way after some tests.
Thank you
Russell
|
|
|
|
|
Russell' wrote: I'll let you know if it is the right way after some tests.
Just wondering if it worked for you or not.
You may be right
I may be crazy
-- Billy Joel --
Within you lies the power for good - Use it!
|
|
|
|
|
in addition to _fpclass there are _isnan and _finite.
A class wrapping up _fpclass is probably the way to go. 
|
|
|
|
|
I need to load 36 jpg images from a folder and display them in a GUI one by one. each image is going to be displayed for 1 second. i also need to develop it by using MFC dialog.
the main problem i have now is that i don't know how to display jpg images in a dialog. i think i should use picture control in the dialog. but it only supports bitmap format.
anyone can help?
|
|
|
|
|
load the pics at startup one time and holds them and draw when approbiate. Draw in a overriden OnPaint() method.
Geart code:
CxImage[^]
Press F1 for help or google it.
Greetings from Germany
|
|
|
|
|
Have a look at CImage[^] (it loads jpg files)
Max.
This signature was proudly tested on animals.
|
|
|
|
|
I have come across this in the past and the only way I have found is to use the OleLoadPicture() function. There is an article here[^] on Code Project with some more information that may explain things.
|
|
|
|
|
You don't need CImage or any lib.
JPG is native in Win32 Shell (8 native methods to load them..)
|
|
|
|
|
kilt wrote: JPG is native in Win32 Shell (8 native methods to load them..)
Quote Selected Text
Sorry, I don't understand what you mean by Win32 Shell in this context. Can you show me these methods and where they are in the MSDN documentation?
|
|
|
|
|
Hi,
When coding an initializer list for a base contructer e.g.
using the example below
where does c " int c " have to be declared somewhere in derived class "a" ???
Class a : public b
a() : b(int c)
thankx
|
|
|
|
|
Do you mean something similar to:
class B
{
int _b;
public:
B(int b):_b(b){}
};
class A: public B
{
public:
A(int c):B(c){}
};
void main()
{
A a(7);
}?
What's your trouble about?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
|
|
|
|
|
If you want to initialize member variables of class b, you'd need something like:
class b
{
int num;
public:
b( int n )
{
num = n;
}
};
class a : public b
{
public:
a( int c ) : b(c)
{
}
};
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
|
|
|
|
|
In other words it has to be in the derived
class constructer paramter list BTW can
I pass "this" pointer in the derived class
paramter list e.g. a(this) : b(this)
Thankx
|
|
|
|
|
please look into the below code block.
HBRUSH CTestApplnDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
int nId = pWnd->GetDlgCtrlID();
CString sData;
if (nCtlColor==CTLCOLOR_EDIT)
{
switch(nId)
{
case IDC_EDIT1:
{
m_EditCtrl.FmtLines(FALSE);
m_EditCtrl.GetWindowText( sData );
}
break;
default:
break;
}
}
return hbr;
}
The m_EditCtrl.FmtLines(FALSE) causes crash in my application.
Please help me to sove this problem.
|
|
|
|
|
KASR1 wrote: The m_EditCtrl.FmtLines(FALSE) causes crash in my application.
What is a "crash?" Is an exception thrown? Was an assertion fired? Have you used the debugger to verify that the edit control exists yet? If you comment that line, does the "crash" still occur (on the next line, perhaps)?
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
|
|
|
|
|
I have investigated with a test application and found that when including the following manifest definition in stdafx.h i am getting crash.
Crash occured in m_EditCtrl.FmtLines(TRUE);
However if i remove m_EditCtrl.FmtLines(TRUE); from OnCtlColor everything is ok.
What should i do?
#if _MSC_VER >= 1400
#if defined _M_IX86
#define PROCESSOR_ARCH "x86"
#define CC_PROCESSOR_ARCH "x86"
#endif
#pragma comment(linker,"/manifestdependency:\"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='" CC_PROCESSOR_ARCH "' publicKeyToken='6595b64144ccf1df' language='*'\"")
#endif // _MSC_VER >= 1400
|
|
|
|
|
KASR1 wrote: What should i do?
You've not answered any of my questions.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
|
|
|
|
|
Sorry.
Yes it says
"Unhandled exception at 0x7866f5f0 (mfc90d.dll) in TestAppln.exe: 0xC0000005: Access violation writing location 0x00030f7c."
when i comment below line it did not crash.
m_EditCtrl.FmtLines(FALSE);
|
|
|
|
|
Use the debugger.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
|
|
|
|
|
Does your edit box have the multi-line property set? FmtLines only applies if it is.
Quoting MSDN:
Windows will only respond if the CEdit object is a multiple-line edit control.
FmtLines only affects the buffer returned by GetHandle and the text returned by WM_GETTEXT.
It has no impact on the display of the text within the edit control.
Hope that helps.
Karl - WK5M
PP-ASEL-IA (N43CS)
PGP Key: 0xDB02E193
PGP Key Fingerprint: 8F06 5A2E 2735 892B 821C 871A 0411 94EA DB02 E193
|
|
|
|
|
krmed wrote: Does your edit box have the multi-line property set?
Whether it did or didn't, that would not cause a "crash." The edit control will simply ignore the EM_FMTLINES message if the ES_MULTILINE style is not set.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
|
|
|
|
|
I have found that calling FmtLines() inside OnCtlColor causes recurrsive call to OnCtlColor. This causes stack overflow and crashes the application.
Is there any possiblity to control this?
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
