/*
* ExceptionTracer
* Contructs a exception trace object, responssible for tracing informations about an exception
*/
ExceptionTracer::ExceptionTracer(char* buffer, size_t max, LPEXCEPTION_POINTERS pException) :
buffer(buffer), exception(*pException), record(*pException->ExceptionRecord), context(*pException->ContextRecord)
{
this->buffer = buffer;
this->buffer[this->len = 0] = 0;
this->spc[this->nspc = 0] = 0;
this->max = max;
// Acquiere common information that we'll access
this->module = GetModuleFromAddress(record.ExceptionAddress);
}
void App::InitMessageWndClass()
{
WNDCLASSEX wc = { 0 };
wc.cbSize = sizeof(wc);
wc.lpfnWndProc = WndProcThunk;
wc.hInstance = GetModuleFromAddress(wc.lpfnWndProc);
wc.lpszClassName = kMessageWndClass;
instance_ = wc.hInstance;
RegisterClassEx(&wc);
message_hwnd_ =
::CreateWindow(kMessageWndClass, 0, 0, 0, 0, 0, 0, HWND_MESSAGE, 0, instance_, 0);
}
/*
* StackTracer::Walk
* Walks on the stack, each walk is one frame of backtrace
* Returns a frame or null if the walk on the park is not possible anymore
*/
StackTracer::Trace* StackTracer::Walk()
{
if (StackWalk64(IMAGE_FILE_MACHINE_I386, GetCurrentProcess(), GetCurrentThread(),
&frame, &context, NULL, NULL, NULL, NULL))
{
trace.module = GetModuleFromAddress((void*)frame.AddrPC.Offset);
trace.frame = (void*)frame.AddrFrame.Offset;
trace.stack = (void*)frame.AddrStack.Offset;
trace.pc = (void*)frame.AddrPC.Offset;
trace.ret = (void*)frame.AddrReturn.Offset;
return &trace;
}
return nullptr;
}
bool BSPanel::Initialize()
{
HMODULE module = GetModuleFromAddress(&BSPanelProc);
WNDCLASSEX wndcls = { 0 };
wndcls.cbSize = sizeof(wndcls);
wndcls.style = CS_HREDRAW | CS_VREDRAW;
wndcls.lpfnWndProc = BSPanelProc;
wndcls.cbClsExtra = 0;
wndcls.cbWndExtra = 0;
wndcls.hInstance = module;
wndcls.hIcon = 0;
wndcls.hCursor = ::LoadCursor(NULL, IDC_HELP);
wndcls.hbrBackground = 0;
wndcls.lpszMenuName = 0;
wndcls.lpszClassName = kClassName;
wndcls.hIconSm = 0;
return !!::RegisterClassEx(&wndcls);
}
bool BSPanel::Uninitialize()
{
HMODULE module = GetModuleFromAddress(&BSPanelProc);
return !!::UnregisterClass(kClassName, module);
}
