C / C++ / MFC

class MyClass;   // actaully declared later but satisfies compiler

<br />
   case DISPID_HTMLELEMENTEVENTS_ONHELP:<br />
   // set the return value to false so IE doesn't display<br />
   // the online help<br />
      pvarResult->vt = VT_BOOL;<br />
      pvarResult->boolVal = FALSE;<br />
      break;<br />

<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 />
}