Hello everybody i have a small question , not big enough for the quick answers . I am working on a MFC project a little bit old. And i had to add a header to the print result. My problem was with the font Size. After some tries i found the really useful Article about Printing trics. The problem was when i used
Printing was ok but the PrintPreview wasnt. The font size was still small and i know why the GetDeviceCaps was returning the dpi of the monitor. This was understandable . After some digging in the code i found that for the rest printed text the font size was calculated a little bit different. For the font Height was taken the absolute value of the height multiplied by the zoom and all divided by some constant. My question is is there some practice about that kind of calculation . To be honest i don't think its a good idea to use it. I don't believe that all printers will print the same thing. But the PrintPreview and the Print result are pretty much the same.
What do you think ?
I created a MFC Smart Device App with Visual C++ in Visual Std 2008. I have dialog forms, I created SQLite database in VS2008. And I imported sqlite.dll sqlite.def etc. files. Now, I want to select data from my database, show in my textlist for example. But I don't know How can I do this.
What is my sqlconnection sentence? How can I create test.db? Which class will I write my sqlconnection sentence, or my select, insert, delete, update sql code? Can anybody explain this step by step?
It is my Job. I research this topic since a week, but still I can not solve this problem. Please help me!
We have developed a COM DLL 64 bit on Windows Server 2008 R2 - 64 bit and this dll is successfully register when visual studio 2010 is installed on the machine but when on a fresh machine its unable to register with following error:
module xxxx.dll failed toload
make sure the binaryis stored at the specified path or debug it tocheckfor prob with the binaryor dependent dll files
After a lot of investigation, we found that if Microsoft C++ runtime 2010 10.0.3019 is installed, then only dll will be registered. Can anyone provide the required list of dependecy. Thanks in advance.
I'm working on a project and I'm a beginner in VC++.
I'm creating a TCP server that will receive a bitmap and will show it on window.
The motive is to receive the continuous images from a client and show them one by one on server window.
Well, you are starting off from the wrong basis here.
A TCP server (in fact a client and server) is implemented in the kernel (on WIndows as TCPIP.sys) and supports am interface called TDI (on older Windows OSs and called something else on newer ones). TDI transports across the IO manager (Kernel to USer mode), providing sockets in the user mode for applications to use.
So what you need are two apps one that opens a socket and sends a bmp file, and another that waits on a socket and can render that bmp file to the screen.
(You can also not directly display UI stuff from the kernel so the stock TCP kernel driver would never be able to display a bmp)
If you really wanted to implement a user mode TCP server/client module then the question is why, and the problem is how you are going to send IP packets to the network card. And if you wanted to send Ethernet packets to the network card you would need to implement IP in user mode too. And if you wanted to do that you would need to write a network driver for your card with a interface accessible to the IO manager that you could open in user mode to get those Ethernet packets to it. All in all a massive and complex problem, so just use sockets, its what they are made for, and made by a lot of very clever people who understood the network stack and provided it for people like you to use.