wchar_t to string or char

[emre2345]

hi everyone, i have a couple of questions. first;

i wanna convert string or char to whar_t, for ex. when the button is down i want to write a numerical variable to a static box, how can i do this?

my second question is:



on some machines the quality of images can fall, what can be the reason of this thing?

[Yustme]

Hi,

You can convert a string like this:

Code: Select all

core::stringw s = "test";

s.c_str();

I am not sure what you mean with "when a button is down". If you mean a gui element, use the CIrrEventReceiver class for it (you can find this in the code snippet forum).

And a tutorial on how to use it, can be found in the "FAQs, Tutorials, Howtos, and external tool lists" forum.

About your second question, it's the graphics card what makes the difference in the quality.

For example, a build-in graphics card gives you a really poor images. This goes for older graphics cards too.

[xDan]

on some machines the quality of images can fall, what can be the reason of this thing?

some cards prefer only power of two textures, have you tried that?

[emre2345]

on some machines the quality of images can fall, what can be the reason of this thing?

some cards prefer only power of two textures, have you tried that?

i dont understand what you mean

[Yustme]

on some machines the quality of images can fall, what can be the reason of this thing?

some cards prefer only power of two textures, have you tried that?

i dont understand what you mean

Hi,

xDan is right, that could be a possibility too.

What he means is that the size of the texture has to have these values:

1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024.

For example, 128 x 256 or 512 x 128.

[emre2345]

ok i see, thnx

[Seven]

i wanna convert string or char to whar_t

Code: Select all

wchar_t wtemp[255];
wchar_t* ConvertToWChar(char* text)
{
	// Convert to a wchar_t*
    size_t origsize = strlen(text) + 1;
    const size_t newsize = 100;
    size_t convertedChars = 0;
    mbstowcs_s(&convertedChars, wtemp, origsize, text, _TRUNCATE);
	return wtemp;
}

not the prettiest, not the fastest. it works though

[wITTus]

Hi.
I got the same problem somehow.
But it was rather the contrary.
For the sake of completeness:

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#include <string>
#include <cstdlib>
#include <cwchar>

void toString(std::string& dst, const wchar_t* src)
{
	size_t newlen = std::wcslen(src) + 1;
	char* tmp = new char[newlen];
	std::wcstombs(tmp, src, newlen);
	dst = tmp;
	delete[] tmp;
}

[Rytz]

Hi.
I got the same problem somehow.
But it was rather the contrary.
For the sake of completeness:

Code: Select all

#include <string>
#include <cstdlib>
#include <cwchar>

void toString(std::string& dst, const wchar_t* src)
{
	size_t newlen = std::wcslen(src) + 1;
	char* tmp = new char[newlen];
	std::wcstombs(tmp, src, newlen);
	dst = tmp;
	delete[] tmp;
}

I didn't read the whole thing so I'm not sure what the original problem was but you might want to try this instead:

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dst.assign(tmp);