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Update DqnWin32 error handling

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This commit is contained in:
Doyle T 2018-08-18 16:08:29 +10:00
parent a9c351be61
commit f8a5853862
1 changed files with 16 additions and 5 deletions
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19
dqn.h
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@ -1939,6 +1939,7 @@ using DqnFixedString128 = DqnFixedString<128>;
using DqnFixedString256 = DqnFixedString<256>; using DqnFixedString256 = DqnFixedString<256>;
using DqnFixedString512 = DqnFixedString<512>; using DqnFixedString512 = DqnFixedString<512>;
using DqnFixedString1024 = DqnFixedString<1024>; using DqnFixedString1024 = DqnFixedString<1024>;
using DqnFixedString2048 = DqnFixedString<2048>;
struct DqnJson struct DqnJson
{ {
@ -2692,6 +2693,9 @@ DQN_FILE_SCOPE i32 DqnWin32_WCharToUTF8(const wchar_t *const in, char *const
DQN_FILE_SCOPE void DqnWin32_GetClientDim (HWND const window, LONG *width, LONG *height); DQN_FILE_SCOPE void DqnWin32_GetClientDim (HWND const window, LONG *width, LONG *height);
DQN_FILE_SCOPE void DqnWin32_GetRectDim (RECT const rect, LONG *width, LONG *height); DQN_FILE_SCOPE void DqnWin32_GetRectDim (RECT const rect, LONG *width, LONG *height);
DQN_FILE_SCOPE char const *DqnWin32_GetLastError();
// TODO(doyle): #deprecate #delete Display Last Error is mostly useless.
// Displays error in the format <err_prefix>: <Win32 Error Message> in a Win32 Dialog Box. // Displays error in the format <err_prefix>: <Win32 Error Message> in a Win32 Dialog Box.
// err_prefix: The message before the Win32 error, can be nullptr // err_prefix: The message before the Win32 error, can be nullptr
DQN_FILE_SCOPE void DqnWin32_DisplayLastError (const char *const err_prefix); DQN_FILE_SCOPE void DqnWin32_DisplayLastError (const char *const err_prefix);
@ -8917,22 +8921,29 @@ DQN_FILE_SCOPE void DqnWin32_GetRectDim(RECT const rect, LONG *width, LONG *heig
if (height) *height = rect.bottom - rect.top; if (height) *height = rect.bottom - rect.top;
} }
DQN_FILE_SCOPE void DqnWin32_DisplayLastError(char const *err_prefix) DQN_FILE_SCOPE char const *DqnWin32_GetLastError()
{ {
LOCAL_PERSIST char err_msg[2048];
err_msg[0] = 0;
DWORD error = GetLastError(); DWORD error = GetLastError();
char err_msg[1024] = {0};
FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
nullptr, error, 0, err_msg, DQN_ARRAY_COUNT(err_msg), nullptr); nullptr, error, 0, err_msg, DQN_ARRAY_COUNT(err_msg), nullptr);
return err_msg;
}
DQN_FILE_SCOPE void DqnWin32_DisplayLastError(char const *err_prefix)
{
if (err_prefix) if (err_prefix)
{ {
char formatted_err[2048] = {0}; char formatted_err[2048] = {0};
Dqn_sprintf(formatted_err, "%s: %s", err_prefix, err_msg); Dqn_sprintf(formatted_err, "%s: %s", err_prefix, DqnWin32_GetLastError());
DQN__WIN32_ERROR_BOX(formatted_err, nullptr); DQN__WIN32_ERROR_BOX(formatted_err, nullptr);
} }
else else
{ {
DQN__WIN32_ERROR_BOX(err_msg, nullptr); DQN__WIN32_ERROR_BOX(DqnWin32_GetLastError(), nullptr);
} }
} }