我正在从Eclipse CDT（使用Qt集成插件）转换到QtCreator 2.0，但仍有一件事情让QtCreator感到困扰：
当我在QtCreator中调试，我没有看到我的qDebug消息在应用程序输出选项卡中，直到我停止正在调试的应用程序...然后它们全部显示
在Eclipse中，我没有这个问题：在执行源代码时遇到qDebug消息时正确显示。
我在Windows下使用Eclipse CDT和Qt Creator。我没有在Linux下尝试（这不是现在的选择）。 解决方案
虽然不是完整的答案，但可以安装（如果您在XP机器上）查看qbbug输出，而你试图弄清楚。
另一种解决方案可能被认为是黑客攻击，但工作得很好，只是简单地劫持调试信息：
#include< QtCore / QCoreApplication>
#include< QDebug>
#include< iostream>
void msgHandler（QtMsgType type，const char * msg）
{
const char symbols [] = {'I'，'E'，'！'，'X' };
QString output = QString（[％1]％2）。arg（symbols [type]）.arg（msg）;
std :: cerr<< output.toStdString（）<<的std :: ENDL;
if（type == QtFatalMsg）abort（）;
int main（int argc，char * argv []）
{
qInstallMsgHandler（msgHandler）;
QCoreApplication a（argc，argv）;
qDebug（）<< 你好，世界。;
qWarning（）<< 呃，哦......;
qCritical（）<< 哦，没有！;
qFatal（AAAAAAAAAH！）;
返回a.exec（）;
}
会输出：
[I] Hello world。
[E]呃，哦...
[！]哦，不！
[X] AAAAAAAAAH！
此应用程序已请求运行时以不寻常的方式终止它。
请联系应用程序的支持团队获取更多信息。
这实际上是我自己发送qDebug，qWarning等的一些代码的修改，到一个日志文件。
I'm making the transition from Eclipse CDT (with Qt integration plugin) to QtCreator 2.0 but there is still one thing that bother me with QtCreator :
When I debug in QtCreator, I don't see my qDebug messages inside the Application output tab until I stop the application I'm debugging... Then they are all displayed at once which is not very useful.
With Eclipse, I don't have this problem : the qDebug messages are displayed correctly when encountered while stepping through the source code.
I'm using both Eclipse CDT and Qt Creator under Windows. I didn't try under Linux (which is not an option right now).
While not a complete answer, you can install DebugView (If you're on an XP machine) to view the qDebug output while you try to figure this out.
Another solution might be considered a hack, but works quite nicely, is to simply hijack debug messages yourself:
#include <QtCore/QCoreApplication>
#include <QDebug>
#include <iostream>
void msgHandler( QtMsgType type, const char* msg )
{
const char symbols[] = { 'I', 'E', '!', 'X' };
QString output = QString("[%1] %2").arg( symbols[type] ).arg( msg );
std::cerr << output.toStdString() << std::endl;
if( type == QtFatalMsg ) abort();
}
int main(int argc, char *argv[])
{
qInstallMsgHandler( msgHandler );
QCoreApplication a(argc, argv);
qDebug() << "Hello world.";
qWarning() << "Uh, oh...";
qCritical() << "Oh, noes!";
qFatal( "AAAAAAAAAH!" );
return a.exec();
}
Which would output:
[I] Hello world.
[E] Uh, oh...
[!] Oh, noes!
[X] AAAAAAAAAH!
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.
This is actually a modification of some code that I use myself to send qDebug, qWarning, etc., to a log file.
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