C / C++ / MFC

<br />
		std::ifstream data_file;<br />
		data_file.open("filename.png", std::ios::in | std::ios::binary);<br />
<br />
		char signature[8];<br />
		<br />
		char width[4];<br />
		char height[4];<br />
<br />
		data_file.read(signature,8);  // read the png signature bit<br />
<br />
		//something else should be read here i think before the width and height but not sure how many bytes<br />
<br />
		data_file.read(width,4);<br />
		data_file.read(height,4);<br />
<br />
		// this line i dont think is right but who knows<br />
		int texWidth  = (int) ((width[0] << 32)+(width[1] << 16)+(width[2] << 8)+width[3]);<br />

<br />
		std::ifstream data_file;<br />
		data_file.open("filename.png", std::ios::in | std::ios::binary);<br />
<br />
		char signature[16];<br />
		char width[4];<br />
		char height[4];<br />
<br />
		data_file.read(signature,16);<br />
<br />
		data_file.read(width,4);<br />
		data_file.read(height,4);<br />
<br />
		int texWidth  = 0;<br />
		for(int i=0; i<4; ++i){<br />
			texWidth <<= 8;<br />
			texWidth += width[i];<br />
		}<br />
<br />
<br />
		data_file.close();<br />

typedef unsigned __int64 uint64_t;

unsigned long myval = 0xba5da800;

uint64_t myfunction(unsigned long val)
{
    return (uint64_t) val * (uint64_t) 0x38e;
}

void myotherfunction()
{
    TRACE("%I64u\n", myfunction(myval));
}

typedef unsigned __int64 uint64_t;<br />
<br />
unsigned long myVal = 0xba5da800 ;<br />
<br />
uint64_t myfunction1(unsigned long val)<br />
{<br />
	return val * 0x38E;<br />
}<br />
<br />
uint64_t myfunction2(unsigned long val)<br />
{<br />
	return ((uint64_t)val * (uint64_t)0x38E);<br />
}<br />
<br />
uint64_t myfunction3(unsigned long val)<br />
{<br />
	return (uint64_t)((uint64_t)val * (uint64_t)0x38E);<br />
}<br />
<br />
int main(int argc, char* argv[])<br />
{<br />
	uint64_t result1 = myfunction1(myVal);<br />
	uint64_t result2 = myfunction2(myVal);<br />
	uint64_t result3 = myfunction3(myVal);<br />
<br />
	printf("myfunction1 - 0x%I64x\n", result1);<br />
	printf("myfunction2 - 0x%I64x\n", result2);<br />
	printf("myfunction3 - 0x%I64x\n", result3);<br />
<br />
	return 0;<br />
}

1.filling the beggining of the string with spaces is not good if you change the font... because spaces size and font size changes also.

2.Deleting the caption and placing a label centered... is also a not standard thing that will make your app. to seem strange...

3.I'm sure that I've seen here in CP some pieces of code that show how to paint over the Caption bar (the typical thing of adding additional buttons and so on...).