alittle progaming help

[the white raven]

i am having trouble trying to compile this code on my borland c++ compiler v5.5 the code is

#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <windowsx.h>

int WINAPI WinMain(HINSTANCE hinstance,
HINSTANCE hprevinstance,
LPSTR lpcmdline,
int ncmdshow)
{
MessageBox(NULL, "What's up world!",
"My First Windows Program",MB_OK);

return(0);
}

does anyone have any ideas the code trys to create a windows box that say's what's up world
when i compiled this code it came up with all of this warning stuff like

warning W8057 prog3_2.cpp 19: Parameter 'hinstance' is never used in function __stdcall WinMain<HINSTANCE__*,HINSTANCE__*,char *,int>

and also

Error nresolved external '_main' refenced from C:\BORLAND\BCC55\LIB\C0X32.OBJ

any idea's

[wwarnick]

Try googling it. It seems every programming problem has been addressed somewhere on the internet.
I didn't know Borland was still making compilers (or is that an old one?). I haven't used C++ in so long, it's nostalgic. But I'm 100% C# now. If you're new to programming, I'd try something a little easier than C++, like Visual Basic. Get Visual Studio Express from Microsoft.com. I don't know how many features it has since I use Pro, but it should do the job.

wwarnick

[the white raven]

ive found out the problem i was compiling it wrong it turns out i was compiling it as a command line program but i needed to compile it as a windows program

[Pod]

all commandline programs needs a main() function - as yours didn't have one it couldn't find it

[wwarnick]

int WINAPI WinMain(HINSTANCE hinstance, HINSTANCE hprevinstance, LPSTR lpcmdline, int ncmdshow)

This is his main function. When programming Windows GUI apps in C++, the main function looks like this.

wwarnick

[prozachar]

warning W8057 prog3_2.cpp 19: Parameter 'hinstance' is never used in function __stdcall WinMain<HINSTANCE__*,HINSTANCE__*,char *,int>

Warnings about unused parameters can usually be safely ignored. In functions that you define, you should probably consider removing the parameter from the function if you get this warning. However, it's generally a good idea to leave those 4 parameters into WinMain, just like it's a good idea to always do

Code: Select all

int main(int argc, char** argv)

for command line programs, even if you don't need to read command line parameters.


And if you take the time to learn C++ well as your first language, you'll be well prepared to learn other languages.

[wwarnick]

And if you take the time to learn C++ well as your first language, you'll be well prepared to learn other languages.

True. After C++, every other language is downhill in my opinion. I personally, however, would (and did) start with something easier.

wwarnick

[NeoThermic]

And if you take the time to learn C++ well as your first language, you'll be well prepared to learn other languages.

True. After C++, every other language is downhill in my opinion.

Nah, ASM is the next logical step after you master C++. It allows you to do things that C++ takes longer to do (or any other language, for that matter).

NeoThermic

[wwarnick]

Efficient, but easier?

wwarnick

[NeoThermic]

Efficient, but easier?

wwarnick

Depends on how you #define easier

</bad programming jokes>

NeoThermic

[wwarnick]

#undef NeoThermic's bad programming jokes

wwarnick

[NeoThermic]

#undef NeoThermic's bad programming jokes

wwarnick

delete wwarnick;

NeoThermic

[Montyphy]

#undef NeoThermic's bad programming jokes

wwarnick

delete wwarnick;

If only you really did...

[xander]

#undef NeoThermic's bad programming jokes

wwarnick

delete wwarnick;

If only you really did... ;)

Only after a few other people that I could mention...

xander