|
CString myCString("1N3");
char* MyStringPointer = (LPCTSTR)myCString;
isdigit(MyStringPointer[0]); // true
isdigit(((LPCTSTR)myCString)[1]); // false
isdigit(myCstring.GetAt(2)); // true
If you want to be ansi/unicode agnostic then use _istdigit.
Endless ways.
-Erik
|
|
|
|
|
none of those worked on my VCPP, and I have the 3rd service pack. It says cannot convert const char* to char*.
|
|
|
|
|
Drake,
It's best to learn C/C++ before trying to program in MFC.
Since all you are doing is checking is digit and not modifying the string, you can put const in front of your char* declaration and the compiler will not complain.
const char* strPtr = (LPCTSTR)myCString;
-Erik
|
|
|
|
|
See CString::GetBuffer(..).
Be sure to call ReleaseBuffer when you're done.
--
Alex Marbus
www.marbus.net
But then again, I could be wrong.
|
|
|
|
|
Hee now than i saw your message..
prev, I got the same problem with the isDigit() function
so I got  and create a iIsNum(CString string) function
using VC++ ver 6
BOOL iIsNum(CString string)
{
int strLenght = string.GetLength();
bool _isnum;
CString chr;
for (int i = 0; i < strLenght ; i++)
{
chr = string.Mid(i,1);
if(chr >= "0" && chr <= "9")
_isnum = TRUE;
else
{
_isnum = FALSE;
break; // no use search for other char
}
}
return _isnum;
}
Hope you still can use this function
~~~
|
|
|
|
|
How can I convert a CString, to a char* ?
|
|
|
|
|
CString str("Hello World");
LPTSTR ptr=str.GetBuffer();
.....
.....
str.ReleaseBuffer();
Cheers
Kannan
|
|
|
|
|
I'm doing the printing right now and print all the drawing to the printer. As normal, I'm using CDC in my OnDraw and OnPrint. I want to have a caption on the printing but seems the size is very very very very small. How to change the font type and font size?
|
|
|
|
|
Is there any faster way to let the user to input some text without creating a new dialog box?
For example, print the question on the screen and the user answer it and press ENTER.
|
|
|
|
|
If this is in relation to your printing, you can extend the printing dialog to also ask the question(s) you have in mind, but I don't see why you'd fiddle around with asking a question and not having ANY dialog - you need to put up a static and an edit box at least, why is there a detrimental effect in them being in a dialog ?
You can make the dialog close when you press enter in the text field if you're worried about people having to press OK.
Christian
The content of this post is not necessarily the opinion of my yadda yadda yadda.
To understand recursion, we must first understand recursion.
|
|
|
|
|
I am trying to control MS InterDev 6.0. I want to do relatively simple things like make it save the current document. I am performing this control with many other apps by sending WM_COMMAND messages with parameters I sniffed with Spy++. Also I am finding the windows using the classname.
I've spent some time with Spy++ and cannot determine any messages I could pass to InterDev to make it save a document. Currently I am generating keyboard events to pass control-s to the window. This is really ugly and I would like a cleaner way to do it.
Does anyone know specifically how to get InterDev to save a document?
Generally, does anyone have suggestions of another method of controling apps and how to reverse engineer those techniques?
Thank you for your help. --Adam
--
Adam Solesby
adam@solesby.com
http://solesby.com
|
|
|
|
|
given a face colour for a windows 3d control (e.g. a button) how does one calculate the highlight and shadow colours programatically. I would like to be able to come up with the same values that windos itself callculates when using "display properties/appearance". I suspect that it will involve converting the rgb colour to hsl then doing a calc, then converting back but I need the numbers.
any ideas?
adam
|
|
|
|
|
Use GetSysColor(COLOR_3DLIGHT) or GetSysColor(COLOR_3DSHADOW). No need to perform 'manual' calculations.
|
|
|
|
|
Hi Guys !
I had the following problem !
I had a MFC Program which must start WORDPAD (for printing a Document)
how can i realise this ???
mfg
Joachim
|
|
|
|
|
Maybe ShellExecute can help you.
Grtx,
Berry
|
|
|
|
|
I have a Code which compiles well; But when I build the Exe file It gives me the following Link Errors:
***********************************************************************
Linking...
LIBCD.lib(wincrt0.obj) : error LNK2001: unresolved external symbol _WinMain@16
Debug/testbug.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.
testbug.exe - 2 error(s), 0 warning(s)
I have NO CLUE What is going wrong and How to Fix it................Please Help me !!
The Code of the program is as follows:
**********************************************************88
#include<iostream>
#include<fstream>
#include<string.h>
#include<stddef.h>
#include<ctype.h>
#include<utility>
// get the STL stuff
#include <vector>
#include <iterator>
// this turns off a useless compiler warning
#pragma warning(disable:4786)
// a namespace is a C++ way of hiding class names.it helps prevent name collisions in large
// projects. "using namespace std" says that you want to use classes that are in the "std" namespace.
using namespace std ;
// same thing here...
using namespace std::rel_ops ;
int main()
{
ifstream infile("in_file");
if(!infile)
{cerr<<"Error, unable to open inputfile";
return -1;
}
else { cout<<"Congrats !!";
return 0;}
};
|
|
|
|
|
See knowledge base articles Q125750 and Q131204 to help you with this problem.
Grtx,
Berry
|
|
|
|
|
Apparently your project settings are not in alignment with what you want to do.
When you created your project, you did not select "Win32 console application".
Since your program contains a main() function and does nothing windows-specific
(that is, displaying windows and stuff), your application is a console application.
Your project settings seem to be "Win32 application" or similar.
In such projects, the main entry point is a function named WinMain() and
*not* main().
Good luck anyway
|
|
|
|
|
Does somebody know how "send to tray" works ?
Like in NAPSTER: if i klick on the close ("x") button the programme doesn't close,
but it's minimized to tray ("beside the clock at the tasklist").
|
|
|
|
|
you must intercept the WM_CLOSE and hide you app instead of closing it. then use Shell_NotifyIcon to put an icon on the task bar. you should also allow some method to close your application.
adam
|
|
|
|
|
I'm trying to send the output to the printer. I found that the output on the printer is very very small..... For example, if I want to print everything on the whole screen, it will be printed on the left upper corner of the paper. Can I make it bigger and use the whole paper and change to position to Landscape?
|
|
|
|
|
What you've discovered is the difference between the DPI of your screen, and the DPI of your printer. Your screen is measured in pixels, but a printer is measured in TWIPS, which are some fraction of an inch ( I forget, but basically - there small ).
The whole print framework is too complex for me to cover thoroughly, I'd suggest you look in the main site under printing, there are a number of articles there that will get you going.
Christian
The content of this post is not necessarily the opinion of my yadda yadda yadda.
To understand recursion, we must first understand recursion.
|
|
|
|
|
What you've discovered is the difference between the DPI of your screen, and the DPI of your printer. Your screen is measured in pixels, but a printer is measured in TWIPS, which are some fraction of an inch ( I forget, but basically - there small ).
The whole print framework is too complex for me to cover thoroughly, I'd suggest you look in the main site under printing, there are a number of articles there that will get you going.
Christian
The content of this post is not necessarily the opinion of my yadda yadda yadda.
To understand recursion, we must first understand recursion.
|
|
|
|
|
1 twip = 1/1440 inch
1 pixel on avg = 1/72 inch
your output will be approx 20 times too small
look at the device context mapping modes you are using
---
"every year we invent better idiot proof systems and every year they invent better idiots"
|
|
|
|
|
go to www.maxcode.com
and then go to visual c++ toturials
you find free e-book abou visual c++6
and you find whole chapter about Printing and you find the answer
about your question...
AHMAD ALWASHALI
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
