setGeometry: Unable to set geometry 72x15+640+276 on QWidgetWindow/'QLabelClassWindow'. Resulting ge
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setGeometry: Unable to set geometry 72x15+640+276 on QWidgetWindow/'QLabelClassWindow'. Resulting geometry: 140x15+640+276 (frame: 9, 34, 9, 9, custom margin: 0, 0, 0, 0, minimum size: 0x0, maximum size: 16777215x16777215).
解释:在学习qt的时候可能会出现以上的语句,这不是一个错误的提示,它的出现并不影响程序的执行,想避免也很简单,从提示可以知道是尺寸不合适导致的,原本根据字符串计算的 QLabel 对象比较小,不能满足弹出窗口最小尺寸(窗口标题栏比较宽),于是标签控件被拉大了,所以出现了这样的提示。根据下面的代码解释:
</pre><pre code_snippet_id="1597493" snippet_file_name="blog_20160304_3_4741217" name="code" class="cpp">
#include <QApplication>#include <QLabel>int main(int argc, char *argv[]){ QApplication a(argc, argv); QLabel label( QLabel::tr("Hello Qt!") ); label.show(); return a.exec();}
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